Don't run each functional test in a different process

Tools/run-gtest-isolated.py

@@ -1,54 +0,0 @@
-#!/usr/bin/env python
-
-from sys import argv, stderr
-from subprocess import call, check_output
-
-
-def list_all_tests(bin_path):
-    out = check_output(['./' + bin_path,"--gtest_list_tests"])
-    out = out.split("\n")
-    if len(out) > 1:
-        prefix = ''
-        tests_list = []
-        for token in out:
-            if len(token) == 0:
-                continue
-            if token[-1] == '.':
-                prefix = token
-                continue
-            if token[0] == ' ' and token[1] == ' ' and len(token) > 0:
-                tests_list.append(''.join([prefix, token[2:]]))
-                continue
-
-        return tests_list
-
-    else:
-        return []
-
-
-
-def run_tests(bin_path, tests_list, args):
-    for test in tests_list:
-        call_args = ['./' + bin_path, ' '.join(args), '--gtest_filter=*{}'.format(test)]
-        print(' '.join(call_args))
-        result = call(call_args)
-        if result != 0:
-            return result
-    return 0
-
-
-
-def main():
-    if len(argv) >= 2:
-        try:
-            exit(run_tests(argv[1], list_all_tests(argv[1]), argv[2:]))
-        except:
-            print('Error with arguments "' + ' '.join(argv[1:]) + '"')
-            raise
-    print('Runs each gtest test in a difference process')
-    print('Usage: ' + argv[0] + ' path/to/gtest.bin [GTEST_OPTIONS]')
-    exit(1)
-
-
-if __name__ == '__main__':
-    main()

cmake/gtest/px4_add_gtest.cmake

@@ -111,8 +111,7 @@ function(px4_add_functional_gtest)
 		add_test(NAME ${TESTNAME}
 		         # functional tests need to run in a new process for each test,
 		         # since they set up and tear down system components
-		         COMMAND ${PX4_SOURCE_DIR}/Tools/run-gtest-isolated.py ${TESTNAME}
-		         WORKING_DIRECTORY ${PX4_BINARY_DIR})
+		         COMMAND ${PX4_BINARY_DIR}/${TESTNAME})
 
 		# attach it to the unit test target
 		add_dependencies(test_results ${TESTNAME})